Official NHA Assessment

Race 10: NEXT MEETING 11 MAY 2022 KENILWORTH PROGRESS STAKES (F & M) (For 1, 2 & 3 Time Winners (F & M))

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Line Horse
Winter Mosaic
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 9
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Brianna              4    55.0    1    0.00     0.0   85    92           91    +6
2    Dad's Catch          4    58.0    2    0.30     0.0   87    98           98    +11
3    Walk Of Fame         4    59.0    3    0.40     0.0   95    100          100   +5
4    Winter Mosaic        3    56.0    4    0.70     2.5   89    89           89    +0
5    Sonic Burst          4    57.0    5    2.20     0.0   83    96           96    +13
6    Quick Breeze         3    57.0    6    3.45     2.5   87    91           91    +4
7    Louis' Diamond       3    55.0    7    4.20     2.5   87    87           87    +0
99   Noosa Princess       4    50.0    99   0.00     0.0   -     82           82    +0
99   Whoa Whoa Whoa (AUS  3    62.0    99   0.00     2.5   -     101          101   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Brianna 85 103 91 +12 0.0 -
2 Dad's Catch 87 88 98 -10 0.0 -
3 Walk Of Fame 95 104 100 +4 0.0 -
4 Winter Mosaic Line 89 94 89 +5 2.5
5 Sonic Burst 83 81 96 -15 0.0 -
6 Quick Breeze 87 79 91 -12 2.5 -
7 Louis' Diamond 87 58 87 -29 2.5 -
99 Noosa Princess - 66 82 -16 0.0 -
99 Whoa Whoa Whoa (AUS) - 108 101 +7 2.5 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points